3.1 surround sound system M-998L1 1.Output power:40W+15W*3 2.USB,SD,FM and ... 3.CD,MP3,FM station show on display Newest 3.1 surround sound system speaker M-998L11.Output power:40W+15W*32 ... and Karaoke3.CD,MP3,FM station show on display Model3.1 home theater system speaker M-998L1FUNCTIONUSB,SD CARD READER,FM ...